32440422 has 16 divisors (see below), whose sum is σ = 74149632. Its totient is φ = 9268680.

The previous prime is 32440417. The next prime is 32440427. The reversal of 32440422 is 22404423.

It is an interprime number because it is at equal distance from previous prime (32440417) and next prime (32440427).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32440427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386154 + ... + 386237.

It is an arithmetic number, because the mean of its divisors is an integer number (4634352).

Almost surely, 2^32440422 is an apocalyptic number.

32440422 is an abundant number, since it is smaller than the sum of its proper divisors (41709210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32440422 is a wasteful number, since it uses less digits than its factorization.

32440422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772403.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 32440422 is about 5695.6493922994. The cubic root of 32440422 is about 318.9300921551.

Adding to 32440422 its reverse (22404423), we get a palindrome (54844845).

The spelling of 32440422 in words is "thirty-two million, four hundred forty thousand, four hundred twenty-two".